To set up a 6to4 tunnel with LANconfig, proceed as follows:
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Start LANconfig. LANconfig now automatically searches the local network for devices.
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Select the device on which you want to set up a 6to4 tunnel. Select it with a left-click and start the configuration from the menu bar with .
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Navigate to and click on 6to4 tunnel.
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Click on Add to create a new 6to4 tunnel.
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Set the name of the 6to4 tunnel.
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Set the Interface tag to a value that uniquely identifies the network. All packets received by this device on this network will be internally marked with this tag. The interface tag enables the routes which are valid for this network to be separated even without explicit firewall rules.
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The Gateway address is set by default to the anycast address "192.88.99.1".
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Here you specify the routing tag that the device uses to determine the route to the associated remote gateway. The IPv4 routing tag specifies which tagged IPv4 route is to be used for the data packets to reach their destination address.
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The default value is this tunnel's firewall.
Important: If you disable the global firewall, you should also disable the firewall for the tunnel.
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Accept your entries with OK.
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Change to the directory .
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Open the Prefix list and click on Add.
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Enter a name for the interface that is used by the 6to4 tunnel, e.g. "INTRANET".
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Set the value for the Prefix to "::/64" in order to accept the prefix issued by the provider automatically and in its entirety.
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Accept the default value of "1" for the Subnet ID.
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Accept the activated option Allow auto-configuration (SLAAC).
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In the field Prefix delegation from, enter the name of the tunnel that you have defined earlier, e.g. in the example above "TUNNEL-6TO4".
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Accept your entries with OK.
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In the directory , open the Interface options, select the entry INTRANET and click on Edit.
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In the drop-down menu Send router advertisements select the option 'Yes'.
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Accept all other default values without change.
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Save your entries with OK.
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Change to the directory .
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Open the IPv6 routing table and click on Add.
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Set the Prefix to the value "::/0".
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In the field Routing tag accept the default value "0".
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In the field Router, select from the list the name of the tunnel that you defined earlier, e.g. in the example above "TUNNEL-6TO4".
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Enter a descriptive comment for this entry.
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Save your entries with OK.
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Change to the directory and enable the IPv6 stack.
